package cn.edu.hqu.cst.lzs.androidhomework7;

import androidx.appcompat.app.AppCompatActivity;

import android.graphics.Color;
import android.hardware.Sensor;
import android.hardware.SensorEvent;
import android.hardware.SensorEventListener;
import android.hardware.SensorManager;
import android.os.Bundle;

import com.alibaba.android.arouter.facade.annotation.Route;
import com.github.mikephil.charting.charts.LineChart;
import com.github.mikephil.charting.components.XAxis;
import com.github.mikephil.charting.data.Entry;
import com.github.mikephil.charting.data.LineData;
import com.github.mikephil.charting.data.LineDataSet;

import java.util.ArrayList;
import java.util.List;

import butterknife.BindView;
import butterknife.ButterKnife;

@Route(path="/app/AmbientActivity")
public class AmbientActivity extends AppCompatActivity implements SensorEventListener {

    @BindView(R.id.lc_ambient_temp)
    LineChart lc_ambient_temp;
    private int timeIndex=0;
    SensorManager sensorManager;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_ambient);
        ButterKnife.bind(this);
        sensorManager= (SensorManager) getSystemService(SENSOR_SERVICE);
        lc_ambient_temp.setTouchEnabled(false);
        lc_ambient_temp.getXAxis().setEnabled(true);
        lc_ambient_temp.getXAxis().setPosition(XAxis.XAxisPosition.BOTTOM);
        lc_ambient_temp.getAxisLeft().setEnabled(true);
        lc_ambient_temp.getAxisRight().setEnabled(false);
        lc_ambient_temp.getAxisLeft().setAxisMaximum(50);
        lc_ambient_temp.getAxisLeft().setAxisMinimum(-20);
        List<Entry> TempEntries=new ArrayList<>();
        LineDataSet TempDataSet=new LineDataSet(TempEntries,"TEMP");
        TempDataSet.setColor(Color.rgb(255,0,0));
        ((LineDataSet) TempDataSet).setDrawCircles(false);
        LineData lineData=new LineData();
        lineData.addDataSet(TempDataSet);
        lc_ambient_temp.setData(lineData);
    }

    @Override
    protected void onPause() {
        super.onPause();
        sensorManager.unregisterListener(this);
    }

    @Override
    protected void onPostResume() {
        super.onPostResume();
        sensorManager.registerListener(this,sensorManager.getDefaultSensor(Sensor.TYPE_AMBIENT_TEMPERATURE),SensorManager.SENSOR_DELAY_NORMAL);
    }

    @Override
    protected void onStop() {
        super.onStop();
        sensorManager.unregisterListener(this);
    }

    @Override
    public void onSensorChanged(SensorEvent sensorEvent) {
        float values[]=sensorEvent.values;
        LineData lineData=lc_ambient_temp.getData();

        if(lineData!=null){
            LineDataSet tempDataSet= (LineDataSet) lineData.getDataSetByLabel("TEMP",true);
            tempDataSet.addEntry(new Entry(timeIndex++,values[0]));
            if(tempDataSet.getEntryCount()<200){
                tempDataSet.addEntry(new Entry(timeIndex++,values[0]));
                lc_ambient_temp.getXAxis().setAxisMaximum(200);
            }else{
                tempDataSet.removeFirst();
                lc_ambient_temp.getXAxis().setAxisMaximum(tempDataSet.getXMax());
            }
            lc_ambient_temp.getAxisLeft().setAxisMinimum(tempDataSet.getYMin());
            lc_ambient_temp.getAxisLeft().setAxisMaximum(tempDataSet.getYMax());
            lc_ambient_temp.getXAxis().setAxisMinimum(tempDataSet.getXMin());
            lc_ambient_temp.notifyDataSetChanged();
            lc_ambient_temp.invalidate();

        }

    }

    @Override
    public void onAccuracyChanged(Sensor sensor, int i) {

    }
}